How not to share a pizza

When Papa Panther opens a new pizzeria with lots of scrumptious toppings, best friends Otto and Ali are first in the queue. "Half for you, and half for me," insists Otto. "Equal shares!" But dividing pizza fairly is tricky especially since Ali can´t resist CHOMPing! At an impasse, Otto decides to get his own pizza. But alone he doesn´t have enough pebbles to buy it, and neither does Ali. It´s only when Otto accidentally trips over a stick that he realises there might be a way to divide the pizza into equal shares and mend their friendship.